A study of the vacuum pyrolysis of 4-diazo-3-isochromanone with Hel ultraviolet photoelectron spectroscopy

Abstract

A newly developed ultraviolet photoelectron spectrometer – CO 2 laser instrument that utilizes a 50-W CW laser as a directed heat source was used to study the vacuum pyrolysis of 4-diazo-3-isochromanone (1). Analysis of the pyrolysate with ultraviolet photoelectron spectroscopy and photoionization mass spectrometry established that 1 undergoes a facile, unexpected pyrolysis at a laser power level of 26 W yielding N 2 , CO, and …